HOW TO ENTER SERVICE MENU TO JVC - AV-27230

To enter into service menu

* Press 'Sleep Timer" key, while indication of SLEEP TIMER [0] MIN; is being displayed.
** Press simultaneously "Display" and "Video Stuts" keys on the remote control.
Service Menu will be dispayed.

To call an item to adjust, use [LEFT & RIGHT] keys on the remote.

Remote control unit to this model is [RM-C306-1A]

To adjust the data value of the selected item, use [UP & DN] keys on the remote.

Service Menu Selections.

PICTURE, SOUND, THEATER, LOW LIGHT, HIGHLIGHT, RF AFC CHECK.

Proceedings to enter any setting items.

[1]  If select any Picture or Sound items, and the [left/right] keys are pressed, from the SERVICE MENU (MAIN MENU) an other screen will be displayed.
[2]  Use UP/DN buttons to select the picture mode screen, or sound mode screen, and select an ietem to adjust.

THEATER, LOW LIGHT, HIGH LIGHT AND RF AFC CHECK MODE.

[1]  If select any of the above item, and [left or right] key is pressed, the respective screens will be displayed, and data value to that item can be adjusted.

* Picture:  This sets the setting values of video/chroma and deflection circuits.
** Sound:  This sets the setting values of the audio circuit.
*** Theater:  This sets the setting values when theater mode is adjusted.
**** Low Light:  This sets the setting values of White Balance circuit.
***** High Light:  This sets the setting values of  White balance circuit.
****** RF AFC Check:  This sets the setting values of IF VCO [Intermediate Frequency Voltage Controlled Oscillator] DO NOT MAKE ANY ADJUSTMENT TO THIS ITEM, WITHOUT PROPER KNOLEDGE